Home / 103,664.16-155,293.12-53,777.06

Finding the Fourth Proportional to 103,664.16, 155,293.12 and 53,777.06

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Solution

The fourth proportional to 103,664.16, 155,293.12 and 53,777.06 is: 80,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.16 : 155,293.12 = 53,777.06 : x
  2. Step 2: Convert to fraction form
    103,664.16/155,293.12 = 53,777.06/x
  3. Step 3: Cross multiply
    103,664.16x = 155,293.12 × 53,777.06
  4. Step 4: Simplify right side
    103,664.16x = 8,351,207,431.83
  5. Step 5: Solve for x
    x = 8,351,207,431.83/103,664.16
  6. Step 6: Final answer
    x = 80,560.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.